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TABLE 2 <br /> LABORATORY ANALYSES - GROUNDWATER <br /> Knowles Property - Stockton, CA <br /> Page 6 of 6 <br /> (in parts per billion) <br /> DATE WELL ID BENZENE TOLUENE ETHYLBENZENE XYLENES TPHG <br /> 12/30/96 MW1 57 27 69 99 2 500 <br /> MW2 <0 5 <05 <05 <05 <50 <br /> MW4 <0 5 <05 <05 <05 <50 <br /> MW5 32,000 29,000 4 600 38,000 190,000 <br /> L—I <br /> MW8 <0 5 <05 <05 <05 <50 <br /> 11 Primary MCLs 10 100 680 1 750 NA <br /> NOTES <br /> TPHG = Total Petroleum Hydrocarbons as Gasoline, Analyzed by EPA Method 8015, Benzene, Toluene, <br /> Ethylbenzene, Xylenes analyzed by EPA Method 8020 <br /> < — Not Detected at or Above Method Detection Limits <br /> = Sample chromatogram does not match gasoline fingerprint <br /> 2 Sample chromatogram contains an unidentified peak which does not match gasoline fingerprint <br /> = When compared to the gasolene standard chromatogram contains a higher proportion of peaks that <br /> elute before benzene <br /> MCLs Maximum Contaminant Levels <br /> NA Not Applicable <br /> r <br /> groundmkknowles hajnAablr2 lab <br />